I had to machine my own replaceable derailleur hangers for my Prowler , I was selling them for awhile several others ended up breaking theirs as well .After the linkage ripped out of the frame when I did the stadium jump at Northstar?
I think we reamed it out and put in some bigger bearings and somehow got ahold of another dogbone or two. They didn't really design the high-leverage parts for high-leverage.